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One trajectory that can be used to send spacecraft from Earth to Mars is an elliptical orbit that has Sun at one focus, its perihelion at Earth, and its aphelion at Mars. The spacecraft is launched from Earth and coasts along this ellipse until it reaches Mars, when a rocket is fired to either put the spacecraft into orbit around Mars or cause it to land on Mars. take.
a: Find the semimajor axis of the ellipse. (Hint: Draw a picture showing Sun and the orbits of Earth, Mars, and the spacecraft. Treat the orbits of Earth and Mars as circles.)
b: Calculate how long (in days) such a one-way trip to Mars would
You drop a rock from a height h the same moment your friend throws a rock upward at speed v. What height, hcollide, did the collision occur
Vector has a magnitude of 192 units and points 39.0 ° north of west. Vector points 64.0 ° east of north. Vector points 12.0 ° west of south. These three vectors add to give a resultant vector that is zero. Using components, find the magnitudes of (a)..
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Determine the flux of particles escaping from the exobase of Earth's atmosphere using a number density at the exobase of 10^5 particles/cm^3 and a temperature of 700K.
Your professor enters the dogsled race during winter break. To getstarted, he pulls his sled, a mass 80 kg with a force of 180N at 20degrees to the horizontal. Find a) the work he does b) the final speed of the sled after it moves 30s
What is the angle of climb
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What is the force exerted by the scale if the elevator is accelerating downward with an acceleration of 2.6 m/s2. If the elevator's descending speed is measured at 10 m/s at a given point, but its speed is decreasing by 2.6 m/s2, illustrate what is ..
three equal point charges each with charge 1.80 muc are placed at the vertices of an equilateral triangle whose sides
Consider the reaction 4He + 40Ca -> 3H + 21Sc Find the minimum laboratory kinetic energy for the 4He projectile if 40Ca is stationary
A ring shaped space station with a radius of 1 km is spinning, sothat the speed of the rim is 50 m/s. What is his apparent weight
You would like to shoot an orange out of a tree with your bow and arrow. What is the height of the arrow once it has travelled the 44.0 m horizontally to the tree
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